我要做的是使用表单 API 创建一个选择列表,用户可以在其中选择行并按下删除按钮,该按钮从数据库中删除选定的行,并重新加载具有已删除选定行的配置的表。使用我当前的代码,当我点击删除按钮时,我收到此错误:
警告:为 form_execute_handlers() 中的 foreach() 提供的参数无效(C:\xampp\htdocs\amaware\includes\form.inc 的第 1431 行)。
这是代码:
/**
* Implements hook_menu().
*/
function smsfeed_menu() {
$items = array();
$items['admin/config/content/smsfeed'] = array(
'title' => 'SMS Messages and Newsletters',
'description' => 'Edit the Setting for the SMS Feed and Newsletter',
'page callback' => 'drupal_get_form',
'page arguments' => array('smsfeed_form'),
'access arguments' => array('access administration pages'),
'type' => MENU_NORMAL_ITEM,
);
$items['admin/config/content/smsfeed/settings'] = array(
'title' => 'Settings',
'type' => MENU_DEFAULT_LOCAL_TASK,
'weight' => 1,
);
$items['admin/config/content/smsfeed/newsletter'] = array(
'title' => 'Newsletter',
'page callback' => 'drupal_get_form',
'page arguments' => array('newsletter_table_form'),
'access arguments' => array('access administration pages'),
'type' => MENU_LOCAL_TASK,
'weigth' => 2,
);
$items['admin/config/content/smsfeed/feed'] = array(
'title' => 'SMS Feed',
'page callback' => 'drupal_get_form',
'page arguments' => array('feed_form'),
'access arguments' => array('access administration pages'),
'type' => MENU_LOCAL_TASK,
'weight' => 3,
);
$items['admin/config/content/smsfeed/questions'] = array(
'title' => 'Questions',
'page callback' => 'drupal_get_form',
'page arguments' => array('questions_form'),
'access arguments' => array('access administration pages'),
'type' => MENU_LOCAL_TASK,
'weigth' => 4,
);
return $items;
}
/**
* Page callback: SMS Settings
*
* @see smsfeed_menu()
*/
function smsfeed_form($form, &$form_state) {
$form['response_time'] = array(
'#type' => 'textfield',
'#title' => t('Response Time (In Days)'),
'#default_value' => variable_get('response_time', 3),
'#size' => 2,
'#maxlength' => 2,
'#description' => t('The response time, in days, that users should expect.'),
);
$form['feed_keyword'] = array(
'#type' => 'textfield',
'#title' => t('Feed Keyword'),
'#default_value' => variable_get('feed_keyword', 'FEED'),
'#size' => 10,
'#maxlength' => 10,
'#description' => t('The keyword users should text to have their message moderated and added to the website feed.'),
);
$form['join_keyword'] = array(
'#type' => 'textfield',
'#title' => t('Join Keyword'),
'#default_value' => variable_get('join_keyword', 'JOIN'),
'#size' => 10,
'#maxlength' => 10,
'#description' => t('The keyword users should text to be added to the newsletter list.'),
);
$form['quit_keyword'] = array(
'#type' => 'textfield',
'#title' => t('Quite Keyword'),
'#default_value' => variable_get('quit_keyword', 'QUIT'),
'#size' => 10,
'#maxlength' => 10,
'#description' => t('The keyword users should text to be removed from the newsletter list.'),
);
return system_settings_form($form);
}
/**
* Page Callback Newsletter
*/
function newsletter_table_form($form, $form_state) {
$rows = array();
$header = array(t('User Name'), t('User Number'), t('User E-mail'),);
$query = db_select('sms_newsletter');
$query->fields('sms_newsletter', array('name', 'number', 'email',))
->orderBy('name', 'ASC');
$results = $query->execute();
foreach ($results as $line) {
$rows[] = array(
$line->name,
$line->number,
$line->email,
);
}
$form['table'] = array(
'#type' => 'tableselect',
'#header' => $header,
'#options' => $rows,
'#empty' => t('No users found'),
);
$form['delete'] = array(
'#type' => 'submit',
'#value' => t('Delect Selected'),
'#submit' => 'newsletter_table_form_delete'
);
return $form;
}
function newsletter_table_form_delete ($form, &$form_state) {
foreach ($form_state['values']['collections'] as $key => $value) {
if ($value) {
$delete = db_delete('sms_newsletter')
-> execute();
}
}
}
任何帮助都深表感谢。
编辑:我编辑了我的 news_letter_table_form 以阅读:
function newsletter_table_form_delete ($form, $form_state) {
foreach (($form_state['values']['table']) as $rows) {
//$delete = db_delete('sms_newsletter')
//-> execute();
drupal_set_message ('' . $rows . '');
//drupal_set_message ('' . $form_state['values']['table'] . '');
}
}
新的输出让我对如何识别选定的行并从数据库中删除它们感到困惑。使用上面的 newsletter_table_form_delete 我得到以下输出:
- 如果我选择第一行没有任何反应
- 如果我选择第二行输出为 1
- 如果我选择第三行,则输出为 2,依此类推
- 如果我选择多行,则输出是所选行的无序 html 列表。
我现在很好奇如何获取我现在拥有的内容并对其进行更改,以便我可以从数据库中删除选定的行。
再次感谢!